2013 Ford Shelby GT500: The 2013 Ford Shelby GT500 delivers a 5.8-liter V8 aluminum-block engine that produces 650 horsepower and 600 lb.-ft. of torque, making it the most powerful production V8 in the world. Nearly every part of the powertrain has been optimized for producing the additional horsepower, including a new supercharger, new cross-drilled block and heads, updated camshaft profiles, a new carbon fiber driveshaft and upgraded clutch, transmission and axle. (11/15/2011)
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